About This

【High-Efficiency Exhaust & Long Lifespan Inline Fan】This 4 inch inline duct fan delivers 85 CFM (145 m³/h) of powerful airflow—perfect for quickly expelling bathroom moisture, grow tent heat, attic odors, and more. With a lifespan of >10,000 hours, this inline fan ensures stable, high-performance ventilation in 24/7 grow setups or busy households.
【100% Pure Copper Motor & Strong Airflow】Featuring a 100% pure copper dual-ball bearing AC motor, this 4 inch exhaust fan spins at 2600 RPM with <60°C temperature rise. Compared to aluminum motors, its 30% better heat dissipation and 50% lower energy use make this inline exhaust fan durable and reliable for heavy-duty needs.
【Low Noise & Durable ABS Material Duct Fan】Equipped with dynamic balance blades and IPX4 waterproof ABS housing, this duct fan resists impacts, corrosion, and deformation. At ≤32dB, it’s a quiet ventilation fan ideal for bedrooms, offices, or any space where peace matters.
【Easy Installation & Versatile Use Duct Fan】This small exhaust fan installs quickly on walls, windows, or ceilings—just plug in and use the one-touch switch. Perfect for bathrooms, grow tents (as a grow tent exhaust fan), attics, garages, workshops, and laundry rooms, it fits standard 4-inch ducts like a Duct Fan.
【High Quality & 24/7 Support Inline Fan】Tested to strict standards, this 4 inline fan includes a 2-year warranty and 24/7 customer service. No need to return—contact us for any issues! (Note: Duct not included.)